/Engine/Source/Editor/CurveEditor/Public/CurveEditorSelection.h
Toggle the selection of the specified key handle, changing the selection type if necessary.
void Toggle ( [FCurveModelID](API\Editor\CurveEditor\FCurveModelID) CurveID, ECurvePointType PointType, [FKeyHandle](API\Runtime\Engine\Curves\FKeyHandle) KeyHandle )